... 2.double layer 3.silicone coated fiberglass line Silicone air hose Material:spring steel wire, silicone, glass fiber fabric, nylon ... 25mm-800mmSpecification:1.high temperature duct, as suction and blast hose, suitable for hot air , blower, exhausting gas, etc.2 ... .well Heat-resistantApplication:Suction and blast hose, especially suitable:-For transmission hot and cold air.-For printing ...